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3610817 - Performance issue with ASE on NVME vs. Non-NVME - ASE

Symptom

  • iostat show better throughput on Non-NVME vs. NVME while inserting

Non-NVME

Device             tps    kB_read/s    kB_wrtn/s    kB_dscd/s    kB_read    kB_wrtn    kB_dscd
dm-0           2600.80         3.20     20173.90         0.00         16     100869          0
sda            2600.40         3.20     20173.90         0.00         16     100869          0
sdb              16.00         0.00       177.60         0.00          0        888          0
sdc               0.00         0.00         0.00         0.00          0          0          0


avg-cpu:  %user   %nice %system %iowait  %steal   %idle
           5.49    0.00   17.46    0.00    0.00   77.05

NVME

Device             tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
sda               0.00         0.00         0.00          0          0
nvme0n1        3079.40         6.00      6183.60         30      30918
dm-0           3082.60         6.00      6184.00         30      30920
dm-1              0.00         0.00         0.00          0          0
dm-2              0.00         0.00         0.00          0          0

avg-cpu:  %user   %nice %system %iowait  %steal   %idle
           0.10    0.00    0.06    0.69    0.00   99.15

  • O_SYNC/O_DIRECT shows worse I/O performance on Non-Volatile Memory Express (NVME) then spinning disks


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Environment

SAP Adaptive Server Enterprise (ASE) 16.0

Product

SAP Adaptive Server Enterprise 16.0.4

Keywords

CR 830776, 830776, NVME, io, through put, performance, volatile , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Product Enhancement

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